CAS Loc. 328, Corona Peak [Zorritos Fm] (Miocene of Peru)

Where: Peru (8.9° S, 78.2° W: paleocoordinates 10.0° S, 73.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Zorritos Formation, Early/Lower Miocene (23.0 - 16.0 Ma)

• STRATIGRAPHIC RELATIONS: Lithostratigraphic unit not stated in text; possibly from Lobitos or Zorritos Fm. AGE: Not stated in text; Zorritos Fm=Early Miocene; Olivancillaria peruviana previously known from Bartonian. STRATIGRAPHIC POSITION: From unknown position within section.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

• ENVIRONMENT: Shallow marine setting.
• SPECIFIC LITHOLOGY: Unknown. LITHIFICATION: Unknown.

Size class: macrofossils

Collected by Gester in 1914; reposited in the CAS

Collection methods: surface (in situ),

• COLLECTOR: G. C. Gester, 1914. REPOSITORY: CAS, California

Primary reference: G. D. Hanna and M. C. Israelsky. 1925. Contributions to the Tertiary paleontology of Peru. Proceedings of the California Academy of Sciences 14(2):37-75 [A. Hendy/A. Hendy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 93740: authorized by Austin Hendy, entered by Austin Hendy on 01.02.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Comprehensive, but not exhaustive for gastropods and bivalves. NOMENCLATURE: Authoritative publication, with species-level assignments, but antiquated nomenclature.
Bivalvia
 Cardiida - Veneridae
Meretrix negritosensis Woods, in Bosworth 1922 venus clam
Gastropoda
 Neogastropoda - Olivellidae
Olivancillaria (Agaronia) peruviana Woods, in Bosworth 1922 snail
 Neogastropoda - Buccinidae
Siphonalia phosoidea Hanna and Israelsky 1925 true whelk
 Neogastropoda - Pseudolividae
Triumphis solida Nelson 1870 snail
 Naticoidea - Naticidae
"Natica coronis n. sp." = Polinices stanislasmeunieri
"Natica coronis n. sp." = Polinices stanislasmeunieri Maury 1917 moon snail
 Sorbeoconcha - Turritellidae
Turritella filicincta Spieker 1922 turret shell
SUBSPECIES: Turritella filicincta varicosta
Turritella nelsoni Spieker 1922 turret shell